Sgt. Richard Rowsome, on duty the night a prisoner was assaulted at 14 Division by a parking enforcement officer, has been disciplined.

A Toronto police sergeant has been disciplined for failing to properly deal with an incident in which a parking enforcement officer walked into a room at 14 Division and assaulted a prisoner in custody, a trial heard Friday.

Sgt. Richard Rowsome told the trial of two Toronto police officers, charged in the alleged assault of Keith Ryan, that he had been informed Thursday by a police superintendent that he would be “limited to administrative duties.’’

The discipline was a penalty for his performance in the station’s booking area on April 24, 2011, when Ryan was in the custody of Manpreet Kharbar and Paul Ramos, the officers on trial.

Kharbar and Ramos had arrested Ryan in the early morning hours, after Ryan got into an altercation with parking enforcement officer Devon Henry.

While Ryan was in a “search room’’ in the division, the court was told, the door was open and Henry, who is not a police officer, came in, punched Ryan, and left.

Rowsome, who was working as a booking sergeant at the time of the incident, had begun testifying at the trial Tuesday. But proceedings came to a sudden halt when defence lawyer Harry Black pointed out inconsistencies between Rowsome’s written and oral evidence. Justice Robert Kelly allowed Rowsome to postpone his testimony to get legal advice.

Rowsome’s notes from the 2011 incident indicate he heard a commotion or fight in the room, went to investigate, entered the room and saw the parking officer leaving, and Ryan on the floor being restrained by the police officers. The officers told him they had things under control, he testified.

But Rowsome told the trial Monday and repeated again Friday that he didn’t enter the room, but stopped at the doorway.

“To me, the words ‘attend the room’ and ‘as I enter the room’ leave no doubt you entered the room,’’ Black told Rowsome in a heated exchange in court, referring to the sergeant’s notes from the time.

Rowsome replied that those notes are “inaccurate.’’

Rowsome didn’t apprehend the parking officer, who left.

Black accused the sergeant of trying to minimize his role in the incident and attempting to dissuade Ramos and Kharbar from reporting the assault by the parking officer to superiors with Toronto police.

“You knew if there was any report of (this incident), one person would be held to account, and that person was you,’’ Black told Rowsome.